dpm error – too many incomplete particles

- July 12, 2019 at 9:43 pm
  
  desouzadacosta
  Subscriber
  
  Hi
  
  I am trying to simulate a one way steady state dpm tracking. I just changed the wall restitution coefficient from 1 to some angle dependent value from literature. After that I have a significant number of incomplete particles and the message below. Could any expert tell
  
  ways to decrease the number of incomplete particles.
  
  Any output would be very welcome.
  
  DPM Iteration ....
  
  Internal warning: proc. 0: getintersectingface_coarse(): ABS(part_side_of_f[pof = 0] = -0.000000) > epsilon = 0.000000
  number tracked = 2000, escaped = 1691, aborted = 0, trapped = 0, evaporated = 0, incomplete = 309, incomplete_parallel = 0
  
  Fate                   Number           Elapsed Time (s)                       Injection, Index
                                         Min        Max        Avg    Std Dev                  Min                  Max
  ----
  
  Incomplete                309   9.795e-02 1.380e+02 1.046e+02 5.098e+01     injection-0 1290     injection-0 1474
  Escaped - Zone 5          452   9.803e-02 3.417e-01 1.086e-01 2.081e-02     injection-0 1482     injection-0 862
  Escaped - Zone 6         1239   9.794e-02 3.460e-01 1.062e-01 1.674e-02     injection-0 1114     injection-0 663
  
                      (*)- Mass Transfer Summary -(*)
  
  Fate                        Mass Flow (kg/s)
                             Initial      Final     Change
  ----
  
  Incomplete              4.855e-04 4.855e-04 0.000e+00
  Escaped - Zone 5        8.327e-04 8.327e-04 0.000e+00
  Escaped - Zone 6        2.015e-03 2.015e-03 0.000e+00
  ----
  
  Net                     3.333e-03 3.333e-03 0.000e+00
  
  Internal warning: proc. 1: getintersectingface_coarse(): ABS(part_side_of_f[pof = 2] = -0.000000) > epsilon = 0.000000
  
  Internal warning: proc. 2: getintersectingface_coarse(): ABS(part_side_of_f[pof = 0] = -0.000000) > epsilon = 0.000000
  
  Internal warning: proc. 3: getintersectingface_coarse(): ABS(part_side_of_f[pof = 0] = -0.000000) > epsilon = 0.000000
- July 12, 2019 at 10:17 pm
  
  Raef.Kobeissi
  Subscriber
  
  Hi Try to increase the total number of steps, do you have circulation in your domain?
- July 13, 2019 at 5:45 pm
  
  desouzadacosta
  Subscriber
  
  Hi Raef
  
  Thanks for the output. The total number of steps is 50 000. It is not expected any recirculation.

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